360 Had a tire Blowout. Now I have questions. - Ferrari Life
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post #1 of 22 Old 02-16-2015, 10:33 AM Thread Starter
 
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Had a tire Blowout. Now I have questions.

Hi All,

Last Sunday, it warmed up enough to take the 360 out for a short spin. On the way home, I was exiting the highway when - BOOM - the whole inside tire wall blew out of the passenger side rear tire. I had to get the poor thing towed home since I didn't have a spare. The tires on the car have plenty of tread but are complete crap and I couldn't guess how old they are. It probably wasn't a great idea, but I figured 20 or 30 miles wouldn't hurt. I'm wrong a lot.

Luckily, I wasn't going too fast and the wheel rode on the flat while I pulled over to a parking lot and I don't see any signs of damage on the wheel. So, It's time for new tires all the way around. I'm probably going to just put a new set of Pilot Sports on it and get on with it, but I thought I'd throw out some questions and see if anyone can chime in.

1.) Does anyone have experience with Spares?
a.) does a rear-spare harm the diff because of rolling radius differences?
b.) is there a recommended low-profile jack for roadside swaps?

2.) If I decide to put new tires on the existing 18" BBS:
a.) What is the largest width tire you can put on an 18" challenge wheel? Currently, I have 295/30/18 on the rear.

3.) If I decide to go with new Rims, I was thinking about these:

Ferrari 360 : Ferrari 360-430 Complete Centerlock Conversion Kit

a.) Has anyone here tried this kit out? Seems like a pretty good deal.
b.) Does any one have a tire size recommendation above stock for these?

4.) If I decide to toss logic and reason out the window:

a.) are there 19" wheel/tire combos that allow for a 345 on the back?
b.) What the widest front tire that can be installed? (I'm perfectly comfortable rolling fenders)
c.) Is there a wheel/tire combo that people recommend for ridiculous width tires like these?
d.) Is there a point where wider tires will start to actually harm the handling?

To be fair, I'm probably just going to toss new tires on the Challenge wheels and call it a day. But, I am curious about how wild/interesting you can get with the sizes.

Thanks!

-Mark
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post #2 of 22 Old 02-16-2015, 11:26 AM
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Mark, I'm glad you got away with it. For everyone else:


How often do you have to be told to get rid of old tires?
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post #3 of 22 Old 02-16-2015, 11:35 AM Thread Starter
 
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I've heard 5 years. I'll bet these are WAY due.
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post #4 of 22 Old 02-16-2015, 12:30 PM
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Mark- There are OEM spare wheels and I see them on E-Bay and on FChat all the time. They are a compromise between the front and rear tire diameters. Trouble is, will a rear wheel go in the luggage compartment if you have a flat? There is an OEM jack kit that goes with the spare tire option

Novitec made 19" NF2s for the 360 that were 12.5" wide in the rear and used 355/25 19 tires. Fronts are 9", about as wide as you want to go.

Go to TireRack and look up the tire type you want (MPSS?) and see what sizes they have that fit 10Jx18 wheels. Look in specs and it gives recommended wheel width for each tire size. Make sure and stay within 4% of the OEM front to rear differential if you get larger tires.

Blow-outs are extremely rare as long as tires are religiously changed every 6 years. I usually recommend someone carry a 12V compressor with alligator clips. If a tire starts to deflate, fill, drive, fill, drive, until you get somewhere they can repair the tire.

Those centerline conversions are neater than sliced bread, and relatively inexpensive.

Enough for now.

Taz
Terry Phillips

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post #5 of 22 Old 02-16-2015, 12:38 PM
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The generally accepted life span of tires is 6yrs. Occasionally I see Pirelli and Michelins start to dry rot within 4yrs-5yrs, so as most know, it's always best to inspect the tire thoroughly before making a decision to run them.


On a similar note, I've got a car in right now where the tread to sidewall joint completely separated on a Pirelli that was only 4yrs old but was already showing signs of dry rot between the tread blocks. It's indeed rare, but all the more reason for routine service visits.


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post #6 of 22 Old 02-16-2015, 01:16 PM
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Sh*t happens - grab a set of center locks.

Good news is no one got hurt.

Agree with Terry all my cars have a 20 buck compressor that plugs in the lighter.
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post #7 of 22 Old 02-16-2015, 01:56 PM
 
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Mark...good to hear you had no damage to car or wheel. I highly recommend Tire Rack for your tire questions. Also, when I purchased new tires, I was told an OEM front tire would fit on rear if necessary, but not a rear tire on the front so I retained one of my used fronts to use in an emergency situation. Someone can please correct me on this if I am in error. Best wishes.
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post #8 of 22 Old 02-16-2015, 04:30 PM
 
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You do not want to drive too far with different size tire diameters on the rear. It puts an extra load on the differential. Don't know too much about driving with a rear diam size on the front. It would pull pretty bad. Has anyone tried it? I spend a lot on tires with 5 cars and 3 trailers I like to go 8 years. Nothing is ever parked in the sun while not in use either.
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post #9 of 22 Old 02-16-2015, 05:06 PM Thread Starter
 
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Thanks for the info, all. Those are some very interesting points you bring up, Taz. I never considered that the rear would be a real problem to transport even if I got it swapped out. I suppose I could keep a tire bag in the frunk and bag the tire and plop it in the passenger seat if I was alone. Wifey probably wouldn't be amused to share the seat with a blown tire.

When the tire blew, I tried to get the car jacked up to take a look, but I couldn't get a stand under the car. To make matter worse, I didn't have a tow hook, so I had to drive the car onto the flatbed when it arrived. Luckily the guy who showed up knew his stuff and managed to get me on and off the truck without scraping or bottoming out.

Is there anyone on this forum running the Novitecs? I'd be interested to get their opinion (handling, road noise, ride quality, fender clearance).
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post #10 of 22 Old 02-16-2015, 09:14 PM
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Steven- I had them on the 575M, but that is not the same thing. They are very heavy just because they are so big. On a 360 or F430, I would much, much prefer the F430 center lock Challenge wheels, and the price is just about the same. Last I checked the NF2s were $6200 for 4, but I also got charged customs when they showed up from Germany. Now long gone and on a 456M. Same NF2 wheels fit the 360 and the Maranellos (with rear spacers for the Maranellos).

Note those center locks are already wider front and rear than OEM 360 or even rear Scuderia wheels. Same width in the rear as a near 2 ton Maranello's wheels at 8.0" F and 10.5" R.

360

Five Spoke and Modular 18”, 5 X 108 mm
Front 7.5J X 18 ET 31.5 mm, Rear 10J X 18 ET 38.95 mm

360 Challenge

Challenge Monolithic 18”, 5 X 108 mm
Front 8J X 18 ET 31.5 mm, Rear 10.5J X 18 ET 39.95 mm

360 Challenge Stradale

Challenge Monolithic 19”, 5 X 108 mm
Front 7.5J X 19 ET 31.5 mm, Rear 10J X 19 ET 39 mm

550/575M/Superamerica

550/575M Five Spoke/Modular 18”, 5 X 108 mm
Front 8.5J X 18 ET 43.65 mm, Rear 10.5J X 18 ET 32 mm
575M/575 Superamerica Five Spoke Modular 19”, 5 X 108 mm
Front 8.5J X 19 ET 43.6 mm, Rear 10.5J X 19 ET 32 mm

F430

Five (Ten) Spoke, Challenge Monolithic, Scuderia Style 19”, 5 X 108 mm
Front 7.5J X 19 ET 31.5 mm, Rear 10J X 19 ET 39 mm

F430 Challenge

Challenge Monolithic, Center Lock
Front 8J X 19 H2 Center Lock, Rear 10.5J X 19 H2 Center Lock

Scuderia/16M

10 Spoke, Five Spoke 19”, 5 X 108 mm
Front 8J X 19 ET 31.5 mm, Rear 10J X 19 ET 39 mm

Taz
Terry Phillips

Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125

Every day I look around, and if nobody is shooting at me, it is a pretty good day.
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post #11 of 22 Old 02-17-2015, 05:27 PM Thread Starter
 
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Taz; you're a fountain of info! I'm really glad I joined up here.

I much prefer the looks of the CL wheels over the novitecs. Since I'm not going to doing anything ridiculous with the engine, I imagine the heavy Novitecs would probably slow the car down a bit, too. If I'm reading the above correctly, the 19" Challenge CL are the same widths as what I'm already running.

Thanks again for the info!

-Mark

(P.S. - The "Steven_Cats" thing is a play on Cat Stevens - long story)
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post #12 of 22 Old 02-17-2015, 08:19 PM
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Mark- Affirmative, same size as your BBS wheels, for which there is a very good market.

I got the name correct the first time and then had a brain fart.

Taz
Terry Phillips

Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125

Every day I look around, and if nobody is shooting at me, it is a pretty good day.
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post #13 of 22 Old 04-01-2015, 05:42 PM
 
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Quote:
Originally Posted by tazandjan View Post
Mark- There are OEM spare wheels and I see them on E-Bay and on FChat all the time. They are a compromise between the front and rear tire diameters. Trouble is, will a rear wheel go in the luggage compartment if you have a flat? There is an OEM jack kit that goes with the spare tire option

Novitec made 19" NF2s for the 360 that were 12.5" wide in the rear and used 355/25 19 tires. Fronts are 9", about as wide as you want to go.

Go to TireRack and look up the tire type you want (MPSS?) and see what sizes they have that fit 10Jx18 wheels. Look in specs and it gives recommended wheel width for each tire size. Make sure and stay within 4% of the OEM front to rear differential if you get larger tires.

Blow-outs are extremely rare as long as tires are religiously changed every 6 years. I usually recommend someone carry a 12V compressor with alligator clips. If a tire starts to deflate, fill, drive, fill, drive, until you get somewhere they can repair the tire.

Those centerline conversions are neater than sliced bread, and relatively inexpensive.

Enough for now.
Terry, as usual you have an amazing wealth of knowledge, thank you!
Since Pirelli doesn't make a 355/25-19 (in fact Tire Rack doesnt have any alternatives in this size) for the Novitec NF2 rears on a 360, what do you recommend instead for size and brand?

Thanks in advance!
Jake
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post #14 of 22 Old 04-01-2015, 07:42 PM
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Jake- We have been running 345/30 19 Michelin Pilot Super Sports on the NF2s in the rear and 255/40s in the front on Maranellos and 456s, but those fronts may be a bit too wide for a 360. Try those rears and whatever size you have been running on the front. The 345/30 19s are about an inch larger in the rear than the 355/25 19s, but have been ok on the V12s. You need rake (larger tire diameter in the rear) for the ABS on a 360, so that should work fine.


The MPSS tires are far superior to the Pirelli P Zero Rossos you have now.

Taz
Terry Phillips

Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125

Every day I look around, and if nobody is shooting at me, it is a pretty good day.
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post #15 of 22 Old 04-02-2015, 06:32 AM
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I'm running 19" HRE 597R wheels with Michelin PS2 tires in these sizes on my 360.
It looks VERY aggressive from the rear now.

Even Kanye likes the look more than himself; and, it's a much nicer look than his wife's back-end.

Front wheels: 8.5X19, offset is 39mm, 235/35/19

Rear wheels: 11X19, offset is 25mm, 305/30/19
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post #16 of 22 Old 04-02-2015, 08:06 AM
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Al- Those rears are too narrow for the 12.5" NF2s.

Taz
Terry Phillips

Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125

Every day I look around, and if nobody is shooting at me, it is a pretty good day.
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post #17 of 22 Old 04-02-2015, 08:40 AM
 
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Quote:
Originally Posted by tazandjan View Post
Jake- We have been running 345/30 19 Michelin Pilot Super Sports on the NF2s in the rear and 255/40s in the front on Maranellos and 456s, but those fronts may be a bit too wide for a 360. Try those rears and whatever size you have been running on the front. The 345/30 19s are about an inch larger in the rear than the 355/25 19s, but have been ok on the V12s. You need rake (larger tire diameter in the rear) for the ABS on a 360, so that should work fine.


The MPSS tires are far superior to the Pirelli P Zero Rossos you have now.
Thanks Terry. I agree, the MPSS is a significantly better tire. So running the 345/30 19 would mean the tire would be about 1.2" taller. I need to verify if this height would cause rubbing on the 360.
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post #18 of 22 Old 04-02-2015, 09:44 AM
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Jake- At stock ride height, you would probably be ok, but any lowering could compromise that.


345/30 19s are 27.15" tall and OEM 275/40 18s are 26.66" tall, but the tall part of the MPSS sticks out quite a bit further right and left.

Taz
Terry Phillips

Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125

Every day I look around, and if nobody is shooting at me, it is a pretty good day.
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post #19 of 22 Old 04-02-2015, 02:00 PM
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Quote:
Originally Posted by tazandjan View Post
Al- Those rears are too narrow for the 12.5" NF2s.

I can't go any wider Terry. The rear already extends from the fender. I've been running this configuration for a year now, no body or handling issues.
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post #20 of 22 Old 04-02-2015, 07:10 PM
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Al- Not talking about your 11" wheels, which are fine with 305/30 19s, talking about Novitec NF2 12.5" wheels and 305/30 19s are too narrow for those. I have that OEM size on my 10.5" rear wheels. Recommended wheel widths for 305/30 19 MPSS tires are 10.5"-11.5". The NF2 owners need wider tires.

Taz
Terry Phillips

Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125

Every day I look around, and if nobody is shooting at me, it is a pretty good day.
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